[LTP] [PATCH v2 1/3] lib/tst_device.c: factor out btrfs-specific logic from tst_find_backing_dev

[Petr Vorel]

Hi Jeff,

> In preparation for handling overlayfs (which also has a major device
> number of 0), factor out the btrfs logic.

Reviewed-by: Petr Vorel <pvorel@suse.cz>

Thanks!

Kind regards,
Petr